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摘要网吧计费管理系统是典型的信息管理系统(MIS),其开发主要包括后台数据库的建立和维护以及前端应用程序的开发两个方面。对于前者要求建立起数据一致性和完整性强、数据安全性好的库。而对于后者则要求应用程序功能完备,易使用等特点。本系统主要完成对网吧计费信息的管理，包括添加、修改、删除，查询，打印信息以用户管理等六个方面。系统可以完成对各类信息的浏览、查询、添加、删除、修改等功能。系统的核心是添加、修改和删除三者之间的联系，每一个表的修改都将联动的影响其它的表，当完成添加或删除操作时系统会自动地完成合同信息的修改。查询功能也是系统的核心之一。此外，系统有完整的用户添加、删除和密码修改功能，并具备报表打印功能。本论文包括需求分析、系统功能、系统设计、程序设计、系统测试及存在问题等方面，较为系统地介绍了“网吧计费管理系统”课题开发的整个过程。关键词:网吧计费,数据库，管理系统ABSTRACTNetBarTimeFeeManagementSystemisatypicalapplicationofmanaginginformationsystem(knowasMIS),whichmainlyincludesdevelopingtheapplicationinterfaceoffront-endandbuildingupandmaintainingthedatabaseofback-end.Theformershouldmakethefunctionofapplicationintegratedandtheusageiseasy,thelatterrequiredadatabasewithpowerfulconsistencyandintegrality,andnicesecurity.Thissystemmainlycompletesthemanagementtonetbar’sinformation;includesixaspectssuchasadding,modifying,deleting,searching,printinginformationandthecustomermanagement.Thesystemcancompletetobrowse,search,add,delete,modifyetc.toeachkindofthefunctionofinformation.Thecoreofthesystemisthecontactofincrease,modificationanddelete,themodificationsofeachformwillaffecttootherforms,thesystemwillcompletethemodificationofcontractofitselfwhilebeingtocompletetoincreaseordeletetheoperation.Inquiringaboutthefunctionofsearchingalsoistheoneofthesystematicnucleus.Thesystemcontainstheintegrityfunctionofusersincrease,deleteandtheciphermodification,andthereportformtoprint.Thisthesisincludesrequirementanalysis,systemfunction,systemsdesign,programmingandthesystemtestsandexiststheaspectssuchasquestionetc,andcomparativelysystematicallyintroducedthewholecourseofNetBarTimeFeeManagementSystemsubjectdevelopment.Keyword:NetBarTimeFeeDatabaseMIS目录1.绪论………………………………………………………………………………11.1论文研究主要内容........................................................................................21.2国内外现状....................................................................................................22.关键技术介绍............................................................................................................42.1关键性开发技术的介绍..............................................................................42.1.1SQLServer数据库介绍...................................................................52.1.2VB概述............................................................................................62.1.3ADO对象.............................................................................................72.1.4SQL语言.............................................................................................82.2搭建环境........................................................................................................93.系统概述与需求分析............................................................................................104.详细分析设计........................................................................................................134.1系统功能设计............................................................................................134.2模型流程图................................................................................................144.3模型业务流程图........................................................................................164.4数据流图....................................................................................................174.5数据字典....................................................................................................174.6系统E-R图................................................................................................194.7数据库设计................................................................................................215.系统的实现............................................................................................................265.1登录模块实现............................................................................................265.2系统管理功能实现....................................................................................275.3信息管理实现............................................................................................295.4查询信息实现............................................................................................305.5操作功能....................................................................................................315.6系统帮助....................................................................................................346.系统的运行与维护................................................................................................356.1系统的配置................................................................................................356.2系统的维护................................................................................................357.总结........................................................................................................................37致谢......................................................................................................................38参考文献..............................................................................................